Home > 2012 ICD-9-CM Diagnosis Codes > Diseases Of The Nervous System And Sense Organs 320-389 > Other Disorders Of The Central Nervous System 340-349 > Other demyelinating diseases of central nervous system 341-
Specific code 2012 ICD-9-CM Diagnosis Code 341.9
Demyelinating disease of central nervous system, unspecified
  • Short description: Cns demyelination NOS.
  • ICD-9-CM 341.9 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 341.9 should only be used for claims with a date of service on or before September 30, 2015. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).
  • You are viewing the 2012 version of ICD-9-CM 341.9.
  • More recent version(s) of ICD-9-CM 341.9: 2013 2014 2015.
Convert to ICD-10-CM: 341.9 converts approximately to:
  • 2015/16 ICD-10-CM G37.9 Demyelinating disease of central nervous system, unspecified
Approximate Synonyms
  • Acute non-infective transverse myelitis
  • Acute transverse myelitis in demyelinating CNS disease
  • Demyelinating CNS disease
  • Demyelinating disease central nervous system (CNS)
  • Demyelinating disease of central nervous system
ICD-9-CM Volume 2 Index entries containing back-references to 341.9:
  • Degeneration, degenerative
    • myelin, central nervous system NEC 341.9
  • Demyelination, demyelinization
    • central nervous system 341.9
  • Disease, diseased - see also Syndrome
    • demyelinating, demyelinizating (brain stem) (central nervous system) 341.9
      • multiple sclerosis 340
      • specified NEC 341.8
  • Syndrome - see also Disease
    • demyelinating NEC 341.9
 341.8 ICD9Data.com 342 
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 341.9 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2012 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.
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